Если коротко:

    - Tables must have the same full qualified name between publication and subscription.
    - Tables must have primary key or unique key
    - Mutual (bi-directional) Replication is not supported
    - Does not replicate schema/DDL
    - Does not replicate sequences
    - Does not replicate TRUNCATE
    - Does not replicate Large Objects
    - Subscriptions can have more columns or different order of columns, but the types and column names must match between Publication and Subscription.
    - Superuser privileges to add all tables
    - You cannot stream over to the same host (subscription will get locked).